Paper-bag-making machine.



G. TOWNSEND. PAPER BAG MAKING MACHINE. APPLICATION FILED APR.12, 1909.

989,667. Patented Apr. 18, 1911.

2 SHEETS-SHEET 1.

fnrenfo r George Townsend Witnesses llffornc yg G. TOWNSEND.

PAPER BAG MAKING MACHINE.

2 SHEETS-SHEET 2 Patented Apr. 18, 1911.

10777168888 fnrenfor. George flavvnsencl y I by h wfiiaw UNITED STATES AT FIcE...,

GEORGE TOWNSEND, on Moscow, m ssm, ASSIGNOB 'm m DAY ANnisoNsfLmrn'mfl or LEEDS, ENGLAND, A CORPORATION. or ENGLAND. a l.

PAPER-BAG-MAKING MACHINE.

To'a'll'wkoni it nlay concern:

Be it known that I, Gnonoa TOWNSEND,

' residin' at Mala Kasyonnie Peroulock, Sa-

papers 0 bag or. other type of ba with the square or F rectangular or'other en folds.

Hitherto in bags of the above named type which have been made.of an outer printed or plain paper and one or more linings of cansin the outer folded end paper to be securet sin posit-ion and at the same timeto' produce a perfectly tight bag. This diflicnltyhas chiefly'arisen from the outer paper and linings being all folded together.

The ob ectof this invention is toovercome the difiiculty mentioned by forming a bag with one or more linings and by means of suitablemechanis'm fold the end or ends of said lining orli'nin 's only, on one side of the bit over the bag E former end leaving the en of the bag proper standing. After- .ward each of the then remaining'sides and linings are together folded over to close the bag, and 'finally,-the upstanding end of the bagproper is turned over the other folds and the. operation is complete unless the folds are to be fastened which may be done bypaste 'on thelast fold, applying a label, or in any other, manner desired. A tight closure is then formed which will prevent the contents of ;the bag from escaping. When the 'bag is to be opened, the end of the ba only; last folded, is first'raised, then the 0 ded ends of the remaining three sides of the 'liagfand'its linings are raised leavin only the lining or linings first foldedstil covering the contents of the bag which may. remain thus to preventv lossof said contents nntil'the bag is tobe emptied whensaid linin fold-- may; be raised.

he invention may be conveniently car ried i-nto ractiee b mechanism arranged as hereina ter descrilicd, but .Which'will reqnireto be 'modified accordingv .to the type .or class of paper bag forming, machine to which it is-a plied.

The invention'is shown in the drawings Specification 0! Letters Patent. Patented Application fll ed Apri112, 1909. Serial No. 489,404.

lead, aydiflicultyhas arisen in bass or catch; Fig. 1 2 an end elevation.

carried 'ilpon" the pins 70, and is'reta hereunto annexed applied to paper machine with risin and fallingkin teriifi tently rotating ormers ed March 2'9, 1904. w In the accompanying drawin F- 1 is a part elevation of sn'ch a m a chineith this invention shown in position Fig. 2"

a part plan of the some; Fig; 3 'is'arr en 'larged part elevation of machine shown-tat ig. 1; 'Fi ."tanen'lar edfplan'of'satng ,Fig. 5' a si "eelei'ation oi one of the leveis Fig. 6 an endelevation of the Same;-Fi r an elevation of hooked leverjFig. '8 ap y of the same; Fig. 9 an elevation ofa thi metal plate for se arat'ing the linings fronrt the outer. paper 0 the bag; Fig. 10a pits of the same; Fig. 11 is-"a front elevation .of ii 1 L the same; Figi'13 aside elevation ofa fron block with projecti'ng pins to wh io 61th springis attached; Fig. 14 an end elevat' of'the same; Fig. 15 an elevationof a bifur c'ated fixing for the 'hooked -lever;--Fi an-end elevationdf'the same; Fig. -;1 elevation of spring? Figs. 5 .;to "17fa'ii drawn to a larger scale'than Figs, l'to 4:.

Like. parts in all the views ai e mark with similar letters of reference,-

a is theframework of the machine,- b table, 0 the intermittenth rising and, fallm and rotating formers, theo'nten portions of-which are diagonally divided. V I

d and e are respectively "s'pur and bev eled, gearing, by .which an intermittent.- rot motion is imparted to the shaftsf-and;

- h is the cam for imp rting', thereq'ms rising and fallin motion. 1 I the folding ox, th ebottom {sew in an upward (position 'by' means/ ofspli .Z coiled arounv the sam'e.-. m the lining paper, which,

L 1, and is'ar'ranged to be inte'; tentlp let off the same by "means ofiff t ratchet wheel n operated by pawl 0, lever and connecting rod g fromgthe. mounted upon thefshaft 8. l v t is alead or other lining blank, and t-h'e'ol'ltsidebag blank.

All theabove described part8. L the nsual j and ordinary oonstriictlo employed on machinesflofthis'ty a able distance apart ets/u in which arey-mounted horizontally one.

or more rods 10. Whentwo' rods w are employed they should be arr-an ed at a suit-- andpa'ra lel with each other. O'n'one or th of themes-w maybe mounted two bossesw and al so as to slide freely thereon whenoperated by lever y connected to one of the bosses by a link a. Thelever 31 is pivoted to-the framework'a at 1, and is operated by a cam 2 u on the shaft .9. Onthe front boss m is fixe able means, the rear end 4 of a separating tion of the metal plate or (its 'end will just be clear of the folder.

and pivoted a late 5. The; said rear end 4 may be in the orm of abracket, or it ma be a prolongalade 5 which is bent and durved to a lower level asshown at "Fig. 3. The sliding metal plate or blade 5 is-made of such a ngth, width and thick; 'nessthat it will readily pass between the lead or otherlining blank t nearest to the outer bag blank u,'and when it has been moved to its extreme outward position it will have passed between the said two blanks and 'A"; slot (ibis-formed in the table I) to ermit of the plate or blade 5, and its bent en 4; work-j in freely therein. To the table I) is hired a bircated' bracket 7 in which is mounted hooked lever 8 adapted to enga-ge with either the front boss :0 or with a separating boss or block 9 mounted upon the rod w, and to which the rear end of the thin metal late orb l 'dfe'o is fixed. The heel 10 ,of the ooked l'ev provided with a projection 11, to which one end of a spiral spring 12 is attached. The 'oppositeend of t e spring is attached to a bracket 13 which is fixed to, or forms part of, the framework a. To the bracket 13 1s pivoted a bell-crank lever 14, the arm of which is made shorter than its other arm. The arm 14 is arranged to act upon the under surface of the heel 10 of the hooked lever 8 while-the arm 15 is in contact with the 'under-si'deof one of the verticalirods or pins k, the'spring 12 being employed to kee the heel 10. in contact with 'the upper .end 0 the arm 14.

. tom j of the foldin able p ojections fr fixed at one end to suitformed on, or attached to; the frame 'a', while the opposite. ends of said spr ngs are connected to projoctingpins 16," 16 are, sprin 's i 18 fixed in the sliding block as.

The action of the apparatus is asfollows: The outer bagblank is fed onto the false botbox '5 and into position unde #the former 0 about the same time as the blank of leador paper t, which forms one of the linings nearest to the inner surface of the outer bag blank 1:, is being fed onto the same. The movable plate or blade- 5 is simultaneously moved into the position cashew I showniat hig'. 3, by com by any su'it-\" p folded in the 'ordin'a'r' wayon this class of position of th'e 'endnof plate or/bladc 5,; be turned upward and against former leaving the' outer blanku in its. original" horizontal position ready to be machines As the f to its" lowest positio moved the arm 15 a d the bell-crank lever downward causing t e arm 14 to raise the heel 10, of the hooked lever 8 until the hook thereon is clear of the boss m or block 9, when the said boss and block will be relse bottoih j descends thereby drawing the plate or blade T -aw y from'the folding box.

It will readily be understood that if ,desired the bosses w and :0 and rods 'tl) nay form part of the mechanism which isminthe folding box 1:. When this is the casei the earn 2, lever y and link parts, in which case the metal plate or blade 5, and boss or blo'clc-Sl;,and the levers 8 and 14 with their res ectivesprings will require.

to this class of machines. Paper bags which in the process of formation have a portion of the lining-of each bag folded by separating a"portionof the lining blank from the linin fori ner maining' ends together with their linings over the previously inturned lining and finally completing the closure by foldin" the end of the bag blank over the other will keep closed and tight with little difficulty. Should it be required to open the end ofa bag thusformed it will be found that the whole of outer bagand the linings of three sides can be readily unfolded without disturbing the separately folded side of the lining. This improved method offolding the'bag makes tents of the bag to escape therefroin'and to be practically air tight.

Ihave dcscribed this invention as beingapplied to the above named machine it can be readily modified-to other makes and construction of machine, theessential feature being to fold a portion of one or more of bled-bottom j and rods 10. As the. former admendsyinto the folding bo'x i the lining blanks t, and m" will, by the downward movement of the f former Jand bv. the telnppra'ril v fwd "ployed for conveying the lining blank it to to be the only a ditional parts-to be added fiilds, 1

it more secure and less liable for the con-' It will readily be understood that although end of-thc' the rod is willhave i turned by springs 18 to its original position a would be theshnic v as employed for thexmovement ,of thec-said hag blank and turning said portion of the blank only against the ends of the and afterward folding the re-' the four folded sides of the provi ed with a false bottom mounted u on springsf a number of intermittently rising names? a m fining orlinings inwardly separate from the, outer blank, and after the remaining ble between a bag blank and a lining .'to fold a portion only of one end of said sides of the bag and its linings have together been folded inward and the fold completed in the usual way the upstandin portlon of thebag is then olded to comp etc the bag. What I claim is 1. A machine .for making linai paper ba comprising means around which ba and 'their lining blanks are simultaneous folded in tubular form, and means inbsfrrtlilg 1mm ndicular to the'ba 'blank.

2. i n igdhine for making lined paper ba comprising means around ,which ba s and their lining blanks aregsimultaneous y folded in tubular form, andnieans insertible between a bag blank and a lining blank before the blanks'are folded into a tube to fold of one end of said lining a portion onl I blanks perpen icular to the bag blank.

In a paper bag forming machine, the.

combination with the table of the machine havin' a folding box mounted thereon and and ing formers, each former divideel diagonally into two parts, of a metal separator mounted upon a rod by bosses or projections, means for intermittently recip- 1 rocating the separator, a .hooked lever for retaining the metal separator in an operative position and means for operating said l'e've V 4. In a paper bag forming machine, the combination with the table of the machine for supporting the bag and linin blanks and having a folding box mounte thereon provided with a false bottom having iding pins and lifting 5 rings, a number o rising and falling an intermittently rotating formers each former divided diagonally into two portions, and means for rotat- .said bell-crank lever bein in and'also-cau'sing the formers to rise and fall, of a rod having mounted thereon a slidin boss, a metal separator bent and attache by its rear position to said sliding boss, means for causlng the metal separator to be intermittently moved in and out between the ba blank and its-lining, a'hooked lever ,pivot to the framework of the machine for holding the metal separator in its 0 rative position, a bell-crank lever adapted to act upon the heel of-the hooked lever, operated by one of said guide pins when t e false bottom is v depresse and springs for respectively drawing the separator away from the former.

5. In a paper he forming machine, the combination of a ormer, a thin intermittently reciprocating plate or blade ada ted to be passed between the paper blank 0 the bag and its lining blanks, and means for reciprocating said blade and for holding it close to the end of said former during its descent for turning a portion of the linings a ainst the end of the former before the ot er folds of the bag are made.

. 6. In a paper bag forming machine, the combination of a former therefor, a metal plate or blade employed for separating and turniri up a portion of the lining blanks from t e ag lank, combined with sliding blocks or brackets, and the means for inter-. mittently reciprocating the same, whereby the said late or blade may be made to travel outwar simultaneously to the folding position with one of the linings of the bag, a hooked lever adapted to hold said blade in its outward position, and means for disengaging the hooked lever to release said blade, when the former descends to fold the blanks. GEORGE TOWNSEND.

Witnesses:

W.- Ransom-HART, GUSTAV Ensnn HARTWIG. 

